ASTROSAT CZTI

Data Quality Report

Orbit 44069

Creation date: 2024-06-27T22:59:00.335011
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_029T01_9000005940_44069cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44069cztM0_level2_quad_clean.evt
Size (bytes)420,537,600109,751,040
Size401.1 MB 104.7 MB
Events in quadrant A4,248,611739,497
Events in quadrant B2,968,960781,812
Events in quadrant C3,038,791726,578
Events in quadrant D4,821,628636,329

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170971
B0129721
C0133431
D0185731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62931041.652630%
B6293390.619736%
C6293280.444939%
D62943555.640292%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7483 6294 28 28 0.37% 0.44%
B 7483 6294 2 2 0.03% 0.03%
C 7483 6294 12 12 0.16% 0.19%
D 7484 6295 298 298 3.98% 4.73%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 1141408 7578.28 734 720 150.5
A 12 227 166501 1101.38 734 720 150.5
A 10 248 57125 374.73 734 720 150.5
B 4 173 35411 238.21 739 715 145.7
B 12 111 18815 124.27 739 715 145.7
B 14 111 17171 112.98 739 715 145.7
C 14 254 79680 455.95 728 733 173.1
C 14 96 53656 305.65 728 733 173.1
C 1 241 35104 198.51 728 733 173.1
D 13 249 1107490 6366.22 702 683 173.9
D 5 222 356213 2044.97 702 683 173.9
D 1 52 290390 1666.36 702 683 173.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter